Window



J. GREENBURG.

WINDOW.

APPLICATION FILED JAN-20, I920.

Patented July 26, 1921.

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Joseph Greenburg UNITED STATES Pj ATE NT OFFICE.

' JOSEPH GREENBURG, OF BOSTON, MASSACHUSETTS. V

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To all whom it may concern: .Be it known that I, JOSEPH GREENBURG, a citizen of the United States, residing at Boston, county of Suffolk, State of Massachusetts, have invented an Improvement in Windows, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to windows and has for its object to provide a novel window construction having window sashes which can be raised and lowered in the usual manner to open and close the window and which can also be swung inwardly into theroom to facilitate the cleansing of the outside surface of the'glass.

In order to give an understanding of my invention, I have illustrated in the drawings a selected embodiment thereof which will now be described, after which the novel features will be pointed out in the appended claims.

Figure 1 shows a window embodyingmy invention taken from the inside of the room;

Fig. 2 is an enlarged fragmentary sectional view on the line 2+2, Fig. 1;

Fig. 3 is a view on theline 33, Fig. 2;

Fig. 4.- is a sectional view showing the manner in which the window sashesare swung inwardly;

Fig.5 is a fragmentary view of one ofthe lower corners of the window frame and the lower sash showing the sash partly elevated;

- Fig. 6 is aview of one corner of one of the sashes;

Fig.7 is a view on the line 7-7, Fig. 4:. I

Fig. 8 is a view-showing how my invention may be used for ventilatingpur'poses.

1 indicates a window frame, 2a lower sash operating therein and 3 an upper sash. The window -fram'emay be of any suitable construction either metal or wood, although I have herein shown for illustrative-purposes a metal frame. This window frame is formed on each side with a guiding shoulder 1 against which the lower sash 2 rests and by which it is guided in itsvertical movement. i Said frame is also p'i'ovi'dedon each side with another guiding shoulder or way 5 against which the upper sash 3 rests and by which it is guided. I Thewindow fr'ame is further providedon each side with two grooves 6 and 7 in which are received .trun-' nions 8 and 9 carried by the'sashes 2 and 3,

I Specification of Letters Patent. Patented ly 26', 1921. Application filed January 20, 1920. Serial No. 352,869.

respectively. The trunnions 8 and 9 are situated at the lower edges of the sashes and these trunnions not only assist in guiding the sashes in their vertical movement, but also form the trunnions about which the sashes may be swung into the room. The trunnions further provide means for attaching the sash cords 10 to the sashes. These guidlng grooves 6 and 7 extend the full length of the window frame and as the sashes are raised or lowered the guiding trunnions 8 and 9 on the sashes move up and down in the grooves. Each sash is also provided with guiding projections situated abovethe trunnions and which operate in the grooves 6 and'7, said projections coops crating with the trunnions to hold the sashes 1n vertical position against the guiding shoulders 4 and 5. The projections onthe lower sash 2 are indicated at 11 and they are preferably of smaller diameter than the trunnions and are situated so that when the window sash is in operative position they bear against the front face of the guiding.

groove 6. The corresponding projections on the upper sash 3 are indicated at 12,

there being one such projection on each side of the sash, and these projections also bear against the front face of the guiding groove 7.

l Means are provided for releasably retaining the projections 11 of the lower sash in the grooves 6, the construction being such that when the projections are withdrawn fromthe grooves the window may be swung inwardly about the trunnions 8, as shown by the full line position Fig. 4. When the window is thus swung into its horizontal position it is situated within the room of the building and the outer face of the glass 13 can be readily cleaned by a person standing in the room. I

from its operative verticalposition against the sh'oulder't into its horizontal position, I provide the front wall of each groove 6 with an opening 14' which is adapted to be closed by aslide 15 that operates within the window frames and is provided with a knob 16 by which it can be moved vertically. This knob 16 extends through a slot 17 in the front of the window frame. So long as each slide 15 is in a position to close'its slot 14:, the window sash will be held in its vertical operative position against the shoulder 45 and may be raised'and lowered as an ordinary window sash. If it is desired toswing the window sash into its horizontal position into the room, as shown in Fig. 1, the slides 15 will be raised thereby to open the slots 14 and the window sash 2 will be moved 'into a position to bring the projections 11 in line with said slots 14. When in this'position the window sash may be swung forwardly about the trunnions, during which opera- 'tion the projections 11 pass through the slots 14. reversal of these operations will bring the window sash back to its normal vertical position again against the shoulders 4:. v V

A somewhat similar construction permits the upper sash 3 to be swung into a horizontal position within the room. The upper sash 3 is made somewhat narrower than the 1. lower sash 2, as shownin Fig. 3, and the Qabove, the upper. sash3' has a less width than the lower sash 2 and the projections 12 come within the portions 19 of the window frame against which the edges of the sash 2 bear. In order to swing the upper sash inwardly, it is necessary first to throw the lower sash into its horizontal position shown in full lines F ig ,4, after whichthe upper sash may .be lowered to bring its projections 12 into line with ;the slots 18, after which said sash can beswung inwardly, as shown by dotted lines Fig. 4. v

The lower sash is 'shownas havingv an apron ,20- depending from. its lower edge which-fits against the raised portion or ledge 21 of the window sill when the lower sash is in its operative'position and closed.

I haveprovided herein means to limit the swinging-movement of. the lower sash 2. This means herein illustrated is in the form ofa stop lug or projection 22 secured to the under side of the lower sash at the endin line with the apron 20 and a slot'23' formed in the shoulder 41. When the sash 2-is swung intohorizontal position, Fig. 4, the projection'22 will swing into the slot 23 and'by its en agement with the upper edge of the slot wi l act as a stop to limit the horizontal swinging movement of the sash 2 and thus hold said sash in such horizontal position while it is beingcleaned. Said projection also acts as a stop to prevent the sash from moving-upwardly when it is in its horizontal position. It will be remembered that the sashflcords are connected to the trunnions 8,

and when the window is thrown into its,

horizontal position the tendency of the sash weights would be to raise the bottom of the window up since the entire weight of the window does not come on the sash cords. The engagement'of the projection 22 against the top of the slot 23 will prevent this upward movement of the window sash.

A similar stop may be provided for the upper sash which would consist of a projection 24 adapted to enter a slot formed in embodimentof my invention,I do not wish to be limited to the shown.

I claim: i

1. In a window, the combination with a window frame having a guiding groove in each side, of a sash having trunnions op erating in said grooves and also having projections "normally received in the grooves which cooperate with the trunnions to hold constructional features the sash in operative position, said window frame having slots extending entirly through one wall of each .grooveto permit theprojections to pass therethrough whereby the window sash-may be swung into horizontal position, {and a stop pro ection extending from the bottom of the sash to cooperate with one. wall of one-groove to limit the swinging movement of the sash.

v 2. In a window, the combination with a window frame having a uiding groove in each side, of a sash having trunnions'operating in said grooves and also having projections normally received in the grooves which cooperate with the trunnions in holding the sash in operative "position, said window frame having slots through onewall of each groove to permit the projections to be removed, from the grooves and the window sash to be swung into horizontal position, and slides for closing saidslots.

3. In a window, the combination-with a window frame having a sash-guiding shoulder on each side, of a sash resting against said shoulder, means for holding said sash in vertical position against said shoulder while permitting it to swing inwardly, one of said shoulders havin a Slot, and a sto'p projection extending" rom 'the sash and adapted to enter said slot when the sash swings inwardly, the wall of the 'slot cooperating with the projection to limit the swinging movement.

n a window, the combination with a window frame having a sash-guiding shoulder and a guiding groove in each side, of a sash arranged to rest against said shoulders and having trunnions operating in said 5 grooves about which the sash may be swung away from the shoulders, releasable means for holding the sash in its operative position against the shoulder, said shoulders having slots therein, and projections extending from the sash and adapted to enter 10 In testimony whereof I have signed my 15 name to this specification.

JOSEPH GREENBURG. 

